from rest_framework import status
from rest_framework.exceptions import ValidationError

from api.models import TtStaff, TtTagRelation, TtLocation, TtModule
from api.models.tt_activity import TtActivity
from api.translation import __
from api.utils import log_critical_error, get_exception_detail
from api.validator import BaseValidator
from api.views.admin.base import AdminApiBase
from api.views.medical.base import MedicalApiBase


class ScheduleListModule(MedicalApiBase):
    def validate_request(self,request):
        rules = {
            "academic_term_id": "required|exists:api.TtAcademicTerm,id",
            "filter": "nullable",
            "page": "nullable",
            "per_page": "nullable",
            "sort_by": "nullable",
            "order_by": "nullable",
        }
        # if need rename field, can put here
        attribute = {
            # "email": __("attr.email"),
        }
        # validate id first, cause need get pos by id, if wrong id direct return error
        validator = BaseValidator(request.data,rules,attribute)
        error = validator.validate()
        if error:
            raise ValidationError(error)

    def post(self, request):
        try:
            self.api_log_skip_outgoing_data=True
            self.validate_request(request)

            data = self.get_data(request)
            response = data
            return self.api_response(data=response)
        except ValidationError as e:
            first_message = e.detail['error']
            errors = e.detail['errors']
            return self.api_response(error=first_message,errors=errors,code=status.HTTP_400_BAD_REQUEST)
        except Exception as e:
            e_details = get_exception_detail(e)
            log_critical_error(user_id=None,descr=e_details['descr'],url=e_details['url'],trace=e_details['trace'])
            return self.api_response(error=__("message.internal_server_error"),code=status.HTTP_500_INTERNAL_SERVER_ERROR)

    def get_data(self,request):
        modules = (
            TtModule.objects
            .filter(academic_term_id=request.data.get('academic_term_id'))
            .select_related("department","academic_term","week_pattern","availability","start_preference","usage_preference")
            .order_by(self.list_default_order_column)
        )
        return_data=[]
        for val in modules:

            data={}
            data["id"] = val.id
            data["code"] = val.code
            data["name"] = val.name

            return_data.append(data)

        return {
            # "total": total,
            # "page": page,
            "data": return_data,
        }